New Ruby Tubes 6V6GTCZ-2 from the Tesla/JJ factory.Clean with smooth clear high end. Well-defined bass notes. Very controllable distortion. If you are a guitar picker with a love for tone, try a set of these outstanding tubes.All Ruby Tubes power tubes come already matched.The JJ 6V6 will add some sparkle and new life to that Fender Deluxe Reverb and Tweed Deluxe. This new robust tube can withstand high plate voltages reliably.This tube can take higher plate voltages.New Ruby Tubes 6V6GTCZ-2 are almost indistinguishable in tone from NOS.